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A certain nucleus X has a mass number 14...

A certain nucleus X has a mass number 14 and atomic number 6. The nucleus X changes to `""_(7)Y^(14)` after the loss of a particle.
Represent this change in the form of an equation.

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`""_(6)X^(14) to ""_(7)Y^(14) + ""_(-1)beta^(@)`
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